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52407237 = 3118714717
BaseRepresentation
bin1100011111101…
…0101111000101
310122121120012210
43013322233011
5101404012422
65111134033
71204311531
oct307725705
9118546183
1052407237
1127645373
1215674319
13ab1bccc
146d62bc1
15490310c
hex31fabc5

52407237 has 8 divisors (see below), whose sum is σ = 69939936. Its totient is φ = 34906352.

The previous prime is 52407227. The next prime is 52407241. The reversal of 52407237 is 73270425.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52407237 - 219 = 51882949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52407217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3798 + ... + 10919.

It is an arithmetic number, because the mean of its divisors is an integer number (8742492).

Almost surely, 252407237 is an apocalyptic number.

It is an amenable number.

52407237 is a deficient number, since it is larger than the sum of its proper divisors (17532699).

52407237 is a wasteful number, since it uses less digits than its factorization.

52407237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15907.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 52407237 is about 7239.2842878285. The cubic root of 52407237 is about 374.2229527501. Note that the first 3 decimals are identical.

The spelling of 52407237 in words is "fifty-two million, four hundred seven thousand, two hundred thirty-seven".

Divisors: 1 3 1187 3561 14717 44151 17469079 52407237